Using iPod and iTunes

Most of the "Apple" iPod family of portable audio players, as well as the iTunes software package for desktop computers, use the more advanced (four layer) M4b audio-book format that provides the capability for setting bookmarks. Using the M4b format files automatically activates the audio-book features, including the bookmark feature.

The bookmark feature is highly desirable when listening to long chapters that need to be interrupted. Stopping the playback automatically sets a bookmark. The iTunes software package also allows playing of the file to be started at any desired point.